Ask about your credit－card firm's online rules: under British law, card holders are responsible for the first $ 78 of any fraudulent spending. And shop only at secure sites, send your credit－card information only if the website offers advanced security system.
If the security is in place, a letter will appear in the bottom right－hand corner of your screen. The website address may also start with https：//—the extra “s” stands for security. If in doubt, give your credit－card information over the telephone.
Keep your password safe: most online sites require a user name and password before placing an order. Treat your password with care.
文章大意：本文主要介绍了信用卡使用中的信息安全问题。
21．The underlined word “fraud” in the first paragraph probably means ________.
A．cheating B．sale
C．payment D．use
答案：A 词义猜测题。根据后面的“Your card information can even be on sale on an illegal website.”你的卡片信息甚至可能在非法网站被出售，可知fraud与cheating同义。
22．According to this passage most people worry about shopping on the Internet because ________.
A．a great number of stolen credit－cards are sold on the Internet every day
B．fraud on the Internet happens very often
C．many Websites break down every day
D．there are too many illegal Websites on the Internet
答案：B 推理判断题。文章一开始就说了“The Internet has led to a huge increase in credit－card fraud.”
